JP2015226338A - Energy optimization system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress increase in reception power in a sewage facility at rainfall to a level in sunny weather.SOLUTION: At an operation of a sewage facility by supplying a power from a power supply 103 of a power company, a power generator 102 and an accumulator battery 104, when supply distribution of the power is determined, a rainfall amount determination part 107 determines increase and decrease of a power to be used on the basis of inputted weather forecast. Planning parts 108 and 109 produce an accumulator battery operation plan of the accumulator battery 104 based on the increase and decrease of the power to be used. A battery controller 110 outputs a charge and discharge control command for the accumulator battery 104 on the basis of the accumulator battery operation plan. A power generator operation determination part 106 outputs a power generator operation command for the power generator 102. A load sharing part 111 outputs a charge and discharge command to the accumulator battery 104 so that a reception power is suppressed to a level in sunny weather on the basis of the charge and discharge control command and the power generator operation command, and outputs operation and stop commands to the power generator 102.

Description

  TECHNICAL FIELD The present invention relates to an energy optimization system in a sewer facility, and in particular, energy that can suppress received power from a general power source to about a fine day by operating an emergency generator and a storage battery during rain. It relates to an optimization system.

  The storage battery is charged with midnight power at night and discharged in the daytime. In other words, the battery has not been made up to compensate for the increased power during the rain. On the other hand, some conventional distributed power supply control systems measure the amount of electricity in the power system and adjust the input / output of the secondary battery to match a predetermined operation pattern (see Patent Document 1). .

In addition, the supply and demand adjustment unit uses the data on the demand and supply capacity of power at the sewage treatment plant adjusted based on the supply and demand forecast of the power at the sewage treatment plant, and the power supply reserve capacity, operating cost, operation of the sewage treatment plant The deviation of the efficiency and the CO ₂ emission amount with respect to the target value is calculated, and an optimal solution of the evaluation function including the calculated deviation and the penalty function as variables is calculated as an optimization model of the sewage treatment plant. Then, the supply and demand control unit controls the operation of the sewage treatment plant according to the calculated optimization model. Thereby, there existed what controlled optimally a sewage treatment plant with high precision irrespective of the timing which performs optimal control (refer to patent documents 2).

Japanese Patent Laid-Open No. 10-341530 JP 2013-161337 A

In the above-mentioned special mention document 1, since it is based on a predetermined driving pattern, the input / output adjustment is made to match the reference pattern determined from past information to the last, so that it matches the occasional operation situation such as during sudden rain. There is a problem that it is unclear whether the input / output of the secondary battery can be adjusted.

  Moreover, in the said patent document 2, although a secondary battery is charged or the output of a power generation equipment is suppressed, the operation | movement of a generator and a storage battery is controlled for the increase in the electric power used at the time of rainfall. It was not considered that the received power was suppressed to the same level as in clear weather.

  The present invention has been made to solve the above-described problems, and by controlling the operation of the emergency generator and storage battery, it is possible to suppress an increase in power used during rainfall and to reduce the received power when the weather is sunny. The aim is to obtain an energy optimization system that can be suppressed to a certain extent.

  The energy management system according to the present invention determines power supply distribution when operating a sewerage facility by supplying power from a power source, a generator, and a storage battery of an electric power company. Is based on the input weather forecast, and is used with a rainfall amount determination unit that determines the increase or decrease in power to be used, and a rain plan unit that creates a storage battery operation plan for storage batteries when the power to be used increases From a sunny day plan unit that creates a storage battery operation plan for a storage battery when power does not increase, a battery control unit that outputs a charge / discharge control command for the storage battery based on the storage battery operation plan, and the input rainfall intensity, rainfall, and power source Based on the received power information of the generator, based on the generator operation determination unit that determines whether or not to operate the generator and outputs the generator operation command, the charge / discharge control command and the generator operation command With received power outputs a discharge command or charge command to the battery to be suppressed to about the time of fine weather, in which a load sharing unit for outputting a driving command or stop command to the generator.

  Another energy management system determines the power supply distribution when operating the sewerage facility by supplying power from the power company's power supply and storage battery, and this energy optimization system is input. Based on the weather forecast, the rainfall amount judgment unit that determines the increase or decrease in power to be used, the rain plan unit to create a storage battery operation plan for storage batteries when the power to be used increases, and the power to be used does not increase And a battery control unit that outputs a discharge command or a charge command to the storage battery so that the received power from the power source is suppressed to about the time of the sunny day based on the storage battery operation plan. It is equipped with.

  Yet another energy management system determines the distribution of power supply when operating sewerage facilities by supplying power from the power supply and generator of the power company. Based on the intensity and rainfall information, the increase or decrease in the received power from the power supply due to the operation status of the sewerage facility is judged, and if the received power is determined to be above a certain value due to the increase in rainfall intensity and rainfall, the received power is constant. A command to prepare a system for supplying power before the value exceeds the value is sent to the generator, and when the received power exceeds a certain value, an operation command is output to the generator.

  According to the energy management system configured as described above, an increase in received power when a power facility such as a stormwater pump of a sewerage facility is operating during a rainy day is about a time when the weather is clear due to operation of a generator or discharge from a storage battery. As a result, the cost can be kept low.

2 is a block configuration diagram showing a power supply system and a control system according to Embodiment 1. FIG. It is a block block diagram which shows the energy optimization system in a sewer facility. It is a graph which shows the exchange of the electric power for making the receiving electric power at the time of raining into the time of a fine sky. 3 is a flowchart showing the operation of the energy optimization system according to the first embodiment. It is a block block diagram which shows the energy optimization system in the sewer facility by Embodiment 2. FIG. It is a flowchart which shows operation | movement of the energy optimization system in the sewer facility by Embodiment 2. It is a block block diagram which shows the energy optimization system in the sewer facility by Embodiment 3. 10 is a flowchart illustrating an operation of an energy optimization system in a sewer facility according to a third embodiment. It is a block block diagram which shows the internal control logic of a load sharing part. It is a block block diagram which shows the power supply system and control system by Embodiment 4. It is a block block diagram which shows the power supply system and control system by Embodiment 4. It is a block block diagram which shows the energy optimization system in the sewer facility by Embodiment 4. 10 is a flowchart showing the operation of the energy optimization system according to the fourth embodiment. 10 is a flowchart showing the operation of the energy optimization system according to the fourth embodiment. It is a block block diagram which shows the energy optimization system in the sewer facility by Embodiment 5. 10 is a flowchart showing the operation of the energy optimization system according to the fifth embodiment. It is a figure which shows selectively using the emergency generator and storage battery with respect to the rainfall amount of the initial stage of rainfall by Embodiment 6. FIG. It is a figure which shows selectively using the emergency generator and storage battery at the time of heavy rain. 18 is a flowchart showing the operation of the energy optimization system according to the sixth embodiment. It is a figure which shows the difference of the electric power used at the time of fine weather and rain in Embodiment 7. FIG. It is a block block diagram which shows the energy optimization system in the sewer facility by Embodiment 8. 20 is a flowchart showing the operation of the energy optimization system according to the eighth embodiment.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a block configuration diagram showing a power supply system and a control system, and FIG. 2 is a block configuration diagram showing an energy optimization system in a sewerage facility. In FIG. 1, the power supply system includes an emergency generator 102, a power supply 103 that supplies received power, and a storage battery 104, and the control system includes an energy optimization system 101 that controls a sewer facility power facility 105. The power source 103 is a power source of a power company, and purchases power from the power company. In FIG. 1, the part indicated by a solid line is a power line, and the part indicated by a dotted line is a part to which a control signal is sent.

  In FIG. 2, the energy optimization system 101 is constructed so that information on rainfall intensity, rainfall, weather forecast, and received power is input. Based on the input weather forecast, the increase / decrease in power used by the rainfall amount determination unit 107 is determined, and the determination result is output to the rain plan unit 108 and the clear sky plan unit 109. The rain planning unit 108 creates a charge / discharge operation plan (hereinafter referred to as a storage battery operation plan) of the storage battery 104 when the power to be used increases. The sunny plan unit 109 also creates a storage battery operation plan for the storage battery 104 when the power to be used does not increase. Then, the created storage battery operation plan is output to the battery control unit 110. The battery control unit 110 outputs a charge / discharge control command for the storage battery 104 to the load sharing unit 111 based on the storage battery operation plan.

  Next, the emergency generator operation determination unit 106 determines whether or not the emergency generator 102 needs to be operated from the input rainfall intensity, rainfall amount, and received power information, and issues an emergency generator operation command to the load sharing unit 111. Output. Based on the information input from the battery control unit 110 and the information input from the emergency generator operation determination unit 106, the load sharing unit 111 instructs the storage battery 104 facility to discharge the power so that the received power is suppressed to about a fine day. Alternatively, a charge command is output and an operation command or a stop command is output to the emergency generator 102.

  Next, the operation will be described. FIG. 3 is a graph showing the exchange of power for reducing the received power at the time of fine weather to rain, and FIG. 4 is a flowchart showing the operation. First, the weather forecast is input to the rainfall amount determination unit 107 (F101). Estimate the power to be used on the day based on the input weather forecast, and output a storage battery operation plan creation command to the rainy planner 108 if it is determined to increase, or to a fine weather planner 109 if it is determined not to increase. (F102).

  Next, a case where the rainfall amount determination unit 107 determines that the power to be used increases (F102) will be described. The rain plan unit 108 creates an increase / decrease prediction schedule of power to be used from the weather forecast based on the output from the rainfall determination unit 107, and completes charging of the storage battery 104 before the power to be used increases. When the power to be used increases, the storage battery operation plan for discharging from the storage battery 104 is output to the battery control unit 110 (F103). The battery control unit 110 outputs to the load sharing unit 111 a charge command for completing the charging of the storage battery 104 before an increase in power to be used, in accordance with the storage battery operation plan input from the rain plan unit 108 (F104). . Further, when the power to be used increases and the received power from the power source 103 becomes a constant value X, the command of the storage battery 104 is output to the load sharing unit 111 so that the received power becomes equal to or less than the constant value X (F105). .

The emergency generator operation determination unit 106 outputs an operation command for the emergency generator 102 to the load sharing unit 111 when the electric power to be used increases from the rainfall intensity and the rainfall, and the received power reaches a certain value X ( F106). The load sharing unit 111 is based on the storage battery charge / discharge command from the battery control unit 110 and the emergency generator operation stop command from the emergency generator operation determination unit 106, and the charge / discharge command of the storage battery 104 and the emergency generator 102 An operation stop command is output (F107). In FIG. 3, the portion A indicated by black is the magnitude of the received power in clear weather, B is the magnitude of the received power during rainfall when the energy optimization system 101 is not introduced, and C is the energy optimization system 101. It shows the magnitude of the received power during the rain when it is installed. By introducing the energy optimization system 101, the power Y is supplied from the storage battery 104 or the emergency generator 102 during the rain, so the received power becomes a certain value X or less, and the received power (C portion) during the rain is clear. The time can be controlled (part A).

  Next, a case where the rainfall amount determination unit 107 determines that there is no increase in power to be used (F102) will be described. Based on the input from the rainfall amount determination unit 107, the fine weather plan unit 109 creates a storage battery operation plan that takes into account the electricity charges for each time zone and outputs the storage battery operation plan to the battery control unit 110 (F108). In other words, a plan is created in which charging is performed at a time when the electricity rate is low and discharging is performed at a high time. The battery control unit 110 outputs a charge / discharge command for the storage battery 104 in accordance with the storage battery operation plan input from the clear sky planning unit 109 (F109).

Embodiment 2. FIG.
FIG. 5 is a block diagram showing an energy optimization system in a sewer facility according to the second embodiment, and FIG. 6 is a flowchart showing the operation. In the first embodiment, the power to be used is predicted in advance from the weather forecast, and charging of the storage battery 104 is completed before the received power reaches a certain value X in accordance with the predicted increase plan of the power. The case where the emergency generator 102 is operated and the storage battery 104 is discharged so that the received power becomes equal to or less than the constant value X when the constant value X is reached has been described. However, it is expected that the electric power used will be further increased because the weather forecast differs from the actual weather. In this embodiment, the operation in such a case will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  When the rainfall amount determination unit 107 determines from the current weather data that the actual weather is different from the weather forecast and increases the power to be used, the rain plan unit 108 outputs a power increase command to be used to the battery control unit 110. (F210). The battery control unit 110 stops discharging when the storage battery is discharged, and outputs a charge command (F211). The battery control unit 110 determines the input signal and outputs a discharge command for the storage battery 104 to the load sharing unit 111 when the received power reaches a constant value (F205). Based on the discharge command (F205) from the battery control unit 110 and the emergency generator operation command (F206) from the emergency generator operation determination unit 106, the load sharing unit 111 and the discharge command for the storage battery 104 and the emergency generator Is output (F207). The operation other than the above is the same as that of the first embodiment.

Embodiment 3 FIG.
FIG. 7 is a block diagram showing an energy optimization system in a sewerage facility according to Embodiment 3, FIG. 8 is a flowchart showing the operation, and FIG. 9 is a block diagram showing an internal control logic of the load sharing unit. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 7, in this embodiment, an operation unit 308 is provided. The operation unit 308 estimates the fuel cost of the emergency generator 102 and the electricity charge necessary for charging the storage battery 104, and determines the operation mode of the operation cost. And output. As a result, the emergency generator 102 and the storage battery 104 can be operated so that the operation cost can be minimized.

  In this case, the operation unit 308 creates information on the fuel cost of the emergency generator 102 and the unit cost of the time zone electricity charge necessary for charging the storage battery 104, and further sets operation modes “automatic” and “manual” for the operation cost. The information is selected and output to the load sharing unit 111 (F307). When the “automatic” mode is selected in the operation mode (F308), the load sharing unit 111 is based on the fuel cost of the emergency generator 102, the charging cost of the storage battery 104, and the storage battery operation plan from the battery control unit 110. Then, an operation pattern based on the minimum operation cost of the emergency generator 102 and the storage battery 104 in which the received power becomes a certain value or less is calculated (F309). That is, the operation pattern of the emergency generator 102 and the storage battery 104 that requires a minimum operation cost while the received power is kept below a certain value is calculated.

  Based on the calculation result, an operation command for the emergency generator 102 and a discharge command for the storage battery 104 are output (F310). When the “manual” mode is selected in the operation mode (F308), the user can control the operation of the emergency generator 102 and the discharge of the storage battery 104 according to the use situation. That is, the quality of the current use state is judged from the relationship between the power used and the power supply capacity of the emergency generator 102 and the power supply capacity of the storage battery 104 (F311). Thus, for example, it is possible to preferentially operate from the facilities having a large power supply capability among the emergency generator 102 and the storage battery 104 with knowledge that the operation cost is required. The operations other than those described above are the same as those in the first or second embodiment.

  Next, the control logic by the load sharing unit 111 will be described with reference to FIG. The electricity charge fuel cost unit 111A inputs the fuel cost of the emergency generator 102 and the electricity charge of the storage battery 104 from the operation unit 308 in FIG. 7, and calculates the cost for operating the emergency generator 102. It outputs to the cost calculation part 111D which calculates the cost at the time of discharging from 111C and the storage battery 104. FIG. The time calculation unit 111B that calculates the expected emergency generator operation time and the expected storage battery discharge time is an operation time of the emergency generator 102 and an operation (discharge) time of the storage battery 104 from the storage battery operation plan input from the battery control unit 110. The time required for charging the storage battery 104 is calculated, and the calculation result is output to the emergency generator operation cost calculation unit 111C and the storage battery discharge cost calculation unit 111D.

  Next, the emergency generator operation cost calculation unit 111C calculates an operation cost necessary for operation of the emergency generator 102 from the input fuel cost and operation time. The storage battery discharge cost calculation unit 111 </ b> D calculates an operation cost from the input electricity bill and the time required for charging the storage battery 104. The cost / cost determination unit 111E compares and determines the operation costs of the emergency generator 102 and the storage battery 104. Based on the determination result of the cost / cost determination unit 111E, the operating device determination unit 111F provides an emergency generator 102 operation / stop command and an emergency generator operation command output unit 111G and a storage battery charge / discharge command output unit 111H. A discharge / charge command for the storage battery 104 is output. Further, the operation of the second embodiment can be added to the operation of the present embodiment.

Embodiment 4 FIG.
10 and 11 are block configuration diagrams showing a power supply system and a control system according to the fourth embodiment, FIG. 12 is a block configuration diagram showing an energy optimization system in a sewerage facility, and FIGS. 13 and 14 are flowcharts showing operations. is there. In the first and second embodiments, the case where both the emergency generator 102 and the storage battery 104 are provided as shown in FIG. 1 is described. However, in this embodiment, as shown in FIG. A case where only the battery 102 is provided or a case where only the storage battery 104 is provided as shown in FIG. 11 will be described.

As shown in FIG. 12, in this embodiment, the load sharing unit that controls the load sharing between the emergency generator 102 and the storage battery 104 and the operation unit that outputs the unit cost of the fuel cost and the electricity bill are unnecessary. If only the emergency generator 102 is installed, the emergency generator operation determination unit 106 receives the rainfall intensity and the rainfall as shown in FIG. 13 (F401). By detecting the rainfall intensity, the increase and the decrease in the rainfall, it is possible to determine the increase and decrease in the received power depending on the operation status of the sewer power facility 105 in the future. However, it takes about 1 minute for the emergency generator 102 to receive power after receiving the operation command. Therefore, when it is determined that the received power exceeds a certain value X due to an increase in rainfall intensity and rainfall, a standby command is sent to the emergency generator 102 before the received power exceeds the certain value X, and a system for supplying power is prepared. Keep it. Then, power can be supplied from the emergency generator 102 as soon as the received power reaches a certain value X or more. When the received power becomes equal to or greater than a certain value X (F404), the operation command from the emergency generator operation determination unit 106 is output to the emergency generator 102 as it is (F420).
When only the storage battery 104 is installed, as shown in FIG. 14, the battery control unit 110 outputs a discharge command for the storage battery 104 so that the received power is equal to or less than a certain value X (F405). The other operations are the same as those in the first embodiment or the second embodiment.

Embodiment 5 FIG.
FIG. 15 is a block diagram showing an energy optimization system in a sewer facility according to Embodiment 5, and FIG. 16 is a flowchart showing the operation. The same parts as those in the third embodiment are denoted by the same reference numerals, and the description thereof is omitted. When power is supplied from the emergency generator 102 or the storage battery 104 to reduce the received power to a certain value X or less, the emergency generator 102 can be operated due to failure of the emergency generator 102 or out of fuel. If the storage battery 104 fails or the storage battery 104 fails, or the battery 104 can no longer be discharged, the operation of only the emergency generator 102 or the storage battery 104 may occur.

  In such a case, when the operation mode “automatic” is selected in the operation unit 308, a signal indicating that the emergency generator 102 cannot be operated, or that the storage battery 104 cannot be discharged. The signal is input to the load sharing unit 111 (F511). When the emergency generator cannot be operated, the load sharing unit 111 issues a discharge command to the storage battery 104 so that the received power becomes a certain value X or less. When the storage battery cannot be discharged, the load sharing unit 111 receives the received power from the emergency generator 102. An operation command is output so as to be equal to or less than a certain value X (F512). When the operation mode “manual” of the operation cost is selected in the operation unit 308, it is determined whether the emergency generator 102 cannot be operated or the storage battery 104 cannot be discharged (F514). The quality of the current use state is determined from the state of the emergency generator 102 or the use power and the state of the storage battery 104. Then, the user operates the facility that can supply power by himself / herself depending on the usage situation (F515). The operations other than those described above are the same as those in the third embodiment.

Embodiment 6 FIG.
In this embodiment, since the power used by the emergency generator 102 and the storage battery 104 and the power used depend on the amount of rainfall and the rainfall time, the load of the emergency generator 102 and the storage battery 104 is shared in consideration of these. It is. The configuration of the energy optimization system according to this embodiment is the same as the configuration of FIG. As shown in FIG. 17, the amount of rainfall and the electric power used increase in proportion to the rainfall time. The operation unit 308 is provided with a priority generator selection mode for the emergency generator 102 and the storage battery 104, and by selecting the “storage battery” mode, the storage battery 104 that can be easily charged and discharged is discharged and used in the early stage of rainfall. The emergency generator 102 may be operated at time T2 when the electric power exceeds a certain value. Thereby, although it depends on the power supply system, the light load operation of the emergency generator 102 can be prevented.

  The emergency generator 102 takes about one minute after receiving the operation start command until it can supply power. Accordingly, since power cannot be supplied from the emergency generator 102 simultaneously with the operation of the power equipment such as the rainwater pump, the power increases due to rain until the power can be supplied from the emergency generator 102. Therefore, this increase is supplemented by the storage battery 104. That is, the storage battery 104 has a fast response and can immediately discharge (supply to the equipment) power. In FIG. 17, T1 is the time when the operation of the power equipment such as the rainwater pump is started, and T2 is the time when the power supply by the emergency generator 102 is started, and the electric power used for the power equipment such as the rainwater pump is a constant value. It is the time of exceeding.

  Further, the storage battery 104 and the emergency generator 102 can be properly used depending on the rainfall intensity. In other words, during guerrilla heavy rains, the power used from the initial stage of rainfall is expected to increase significantly regardless of the rainfall time. Therefore, the priority generator selection mode for the emergency generator 102 and the storage battery 104 is provided in the operation unit 308, and when the occurrence of heavy rain is predicted from the rainfall intensity of the weather data, the “emergency generator” mode is selected. As a result, the emergency generator 102 can be operated from the beginning of the rain, and the received power can be suppressed to a certain value or less. FIG. 18 is a graph showing the relationship between the rainfall time, the rainfall amount, and the power used in such a case. In the above description, the case where the priority unit of the storage battery 104 and the emergency generator 102 is manually selected from the rainfall amount of the weather data has been described. However, the priority operation mode “automatic” of the emergency generator 102 and the storage battery 104 is set in the operation unit 308. In the case of “automatic”, an emergency generator and a storage battery may be automatically selected in accordance with the rainfall amount of weather data.

  FIG. 19 is a flowchart showing the operation in such a case. In FIG. 19, the operation unit 308 is provided with a priority operation mode (automatic / manual) (F601). When manual selection is performed in the priority operation mode of the operation unit 308, operation is performed in order from the device (emergency generator 102 or storage battery 104) selected in the priority unit selection mode of the operation unit 308 (F606). When the storage battery is selected, the storage battery 104 is discharged (F607), and the emergency generator 102 is operated and switched to power supply from the emergency generator 102 when the amount of power used reaches a certain value (F608). In addition, when the emergency generator 102 is selected in the priority unit selection mode of the operation unit 308 (F606), power is supplied by the emergency generator operation from the beginning. The device 102 is not switched.

  Next, when the priority operation mode of the operation unit 308 is selected to be automatic, it is determined from the rainfall amount of the weather forecast (F602), and the storage battery 104 is discharged until the rainfall amount becomes a constant value (F604). As the amount of rainfall increases, the number of operating power facilities mainly consisting of rainwater pumps increases, and when the amount of power used reaches a certain value, the emergency generator 102 is operated and switched to power supply from the generator ( F605). When the amount of rainfall is equal to or greater than a certain value from the beginning of rainfall (F602), the emergency generator 102 is operated from the beginning, and power is supplied from the emergency generator 102.

Embodiment 7 FIG.
The increase in power used during rainfall is power for operating power equipment such as a rainwater pump. In FIG. 20, it is shown that the difference E between the received power during sunny weather and during raining is the power used in power equipment such as a rainwater pump. The rainfall amount determination unit 107 can predict the operating state of the power equipment such as the rainwater pump from the rainfall amount, and thereby it is possible to predict an increase in power to be used. The configuration of the energy optimization system according to this embodiment is the same as the configuration of FIG.

  Furthermore, the operating time of the emergency generator 102 and the dischargeable time from the storage battery 104 are predicted based on the capacity of the fuel tank of the emergency generator 102, the dischargeable capacity of the storage battery 104, and the operating capacity of power equipment such as a rainwater pump. be able to. Therefore, by displaying these on the operation unit 308, it is possible to inform the user of the usage status and to determine whether the usage status is good or bad. As described above, in the present embodiment, means for determining the operation state of the emergency generator 102, the storage battery 104, and the sewerage facility are provided.

Embodiment 8 FIG.
FIG. 21 is a block diagram showing an energy optimization system in a sewer facility according to Embodiment 8, and FIG. 22 is a flowchart showing the operation. Note that the same parts as those in the fifth embodiment are denoted by the same reference numerals, and description thereof is omitted. In this embodiment, a regular generator is used instead of the emergency generator. Here, the regular generator is a generator installed on the consumer side (the sewer facility side) and is different from the power source (purchased power source) 103 of the electric power company. In the regular generator, the output (power supply amount) can be adjusted, and the output can be increased or decreased.

The normal generator operation output determination unit 802 outputs a normal generator operation output increase command to the load sharing unit 111 when it is determined that the power used from the rainfall intensity and the rainfall has increased and the received power has reached a certain value ( F806). The load sharing unit 111 is based on the storage battery charge / discharge command from the battery control unit 110 and the normal generator operation output increase / decrease command from the normal generator operation output determination unit 802, and the charge / discharge command of the storage battery 104 and the normal generator A command to increase / decrease the operation output by the normal generator is output (F810). In this way, when the rainwater pump or the like is operated during rainfall and the power used increases, the increase in the received power (purchased power from the power company) can be suppressed by increasing the output of the regular generator. . In the present embodiment, the operation and effect are the same as those in the first to seventh embodiments, except that the emergency generator is replaced with a regular generator as compared with the first to seventh embodiments.
Further, within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

101 energy optimization system, 102 emergency generator, 103 generator,
104 storage batteries, 105 sewerage facilities, 106 emergency generator operation determination unit,
107 Rainfall Determining Unit, 108 Raining Planning Unit, 109 Fine Weather Planning Unit,
110 battery control unit, 111 load sharing unit, 308 operation unit,
802 Common generator operation determination unit.

Claims (8)

An energy optimization system that determines supply distribution of the power when operating a sewerage facility by supplying power from a power source, a generator and a storage battery of an electric power company,
The energy optimization system includes a rainfall determination unit that determines an increase or decrease in power to be used based on an input weather forecast;
A rainy plan section that creates a storage battery operation plan for the above storage battery when the power to be used increases,
A fine weather plan section that creates a storage battery operation plan for the above storage battery when the power to be used does not increase,
A battery control unit that outputs a charge / discharge control command for the storage battery based on the storage battery operation plan;
A generator operation determination unit that determines whether or not the generator is required to operate from information on the input rainfall intensity, rainfall, and received power from the power source, and outputs a generator operation command;
Based on the charge / discharge control command and the generator operation command, a discharge command or a charge command is output to the storage battery so that the received power is suppressed to about a sunny day, and an operation command or a stop command is issued to the generator. An energy optimization system comprising a load sharing unit for outputting. Since the actual weather is different from the weather forecast, when it is determined that the amount of power used by the rainfall determination unit increases, the plan unit during rain outputs a power increase command to be used to the battery control unit. 2. The energy optimization system according to claim 1, wherein when the storage battery is discharged, the battery control unit stops discharging and outputs a charge command. The load sharing unit calculates an operation pattern of the generator and the storage battery that requires a minimum operation cost with the received power held at a certain value or less, and based on the calculation result, the operation command of the generator and the 3. The energy optimization system according to claim 1, wherein a discharge command for the storage battery is output. The load sharing unit issues a discharge command to the storage battery so that the received power is a predetermined value or less when the generator is not operable, and the received power is constant for the generator when the storage battery is not discharged. The energy optimization system according to any one of claims 1 to 3, wherein the operation command is output so as to be equal to or less than the value. When an operation unit having a priority unit selection mode for the generator and the storage battery is provided and the storage battery mode is selected in the operation unit, the initial stage of rainfall is discharged from the storage battery and the power used exceeds a certain value. Operate the above generator,
5. The energy optimization system according to claim 1, wherein when the generator mode is selected, the generator is operated from the beginning of rainfall. The energy optimization system according to any one of claims 1 to 5, further comprising means capable of determining operation states of the generator, the storage battery, and the sewerage facility. An energy optimization system that determines supply distribution of the power when operating a sewerage facility by supplying power from a power source and a storage battery of an electric power company,
The energy optimization system includes a rainfall determination unit that determines an increase or decrease in power to be used based on an input weather forecast;
A rainy plan section that creates a storage battery operation plan for the above storage battery when the power to be used increases,
A fine weather plan section that creates a storage battery operation plan for the above storage battery when the power to be used does not increase,
An energy optimization system comprising: a battery control unit that outputs a discharge command or a charge command to the storage battery so that the received power from the power source is suppressed to about a sunny day based on the storage battery operation plan. . An energy optimization system that determines the distribution of power supply when operating a sewerage facility by supplying power from a power source and generator of an electric power company,
The energy optimization system determines an increase or decrease in the received power from the power source according to the operation status of the sewerage facility based on the rainfall intensity and rainfall information, and the received power exceeds a certain value due to the increase in the rainfall intensity and the rainfall. If it is determined that the power received will be greater than a certain value, a command to prepare a system for supplying power to the generator before the power received becomes a certain value or more will be sent to the generator, and the power received will be greater than the certain value. An energy optimization system characterized in that an operation command is output to the generator.

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